Home / 1,137,319.32-1,569,479.64-628,010.76

Finding the Fourth Proportional to 1,137,319.32, 1,569,479.64 and 628,010.76

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Solution

The fourth proportional to 1,137,319.32, 1,569,479.64 and 628,010.76 is: 866,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,319.32 : 1,569,479.64 = 628,010.76 : x
  2. Step 2: Convert to fraction form
    1,137,319.32/1,569,479.64 = 628,010.76/x
  3. Step 3: Cross multiply
    1,137,319.32x = 1,569,479.64 × 628,010.76
  4. Step 4: Simplify right side
    1,137,319.32x = 985,650,101,520.93
  5. Step 5: Solve for x
    x = 985,650,101,520.93/1,137,319.32
  6. Step 6: Final answer
    x = 866,643.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.